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Vulnerability · Published Aug 24, 2025 · Assigned by VulDB

CVE-2025-9392Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 qosClassifier stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in RE6250 from Linksys. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 5.3% (higher than 93% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)5.3%top 7.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A security vulnerability has been detected in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. This affects the function qosClassifier of the file /goform/qosClassifier. Such manipulation of the argument dir/sFromPort/sToPort/dFromPort/dToPort/protocol/layer7/dscp/remark_dscp leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

VendorProductVersions
Linksys RE6250 1.0.013.0011.0.04.0011.0.04.0021.1.05.0031.2.07.001
Linksys RE6300 1.0.013.0011.0.04.0011.0.04.0021.1.05.0031.2.07.001
Linksys RE6350 1.0.013.0011.0.04.0011.0.04.0021.1.05.0031.2.07.001
Linksys RE6500 1.0.013.0011.0.04.0011.0.04.0021.1.05.0031.2.07.001
Linksys RE7000 1.0.013.0011.0.04.0011.0.04.0021.1.05.0031.2.07.001
Linksys RE9000 1.0.013.0011.0.04.0011.0.04.0021.1.05.0031.2.07.001

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

References